SPARTA (23 Dec 2017) KOKKOS mode is enabled (../kokkos.cpp:39) using 0 GPU(s) per MPI task using 1 thread(s) per MPI task package kokkos package kokkos reduction parallel/reduce comm classic # flow around a sphere on a uniform grid # particles are created initially and input at boundaries at stream velocity variable x index 10 variable y index 10 variable z index 10 variable n equal 10*$x*$y*$z variable n equal 10*16*$y*$z variable n equal 10*16*20*$z variable n equal 10*16*20*20 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 1.1453125e+17 timestep 1.E-5 global gridcut 0.1 global surfmax 300 boundary o o o create_box -5.0 5.0 -5.0 5.0 -5.0 5.0 Created orthogonal box = (-5 -5 -5) to (5 5 5) create_grid $x $y $z create_grid 16 $y $z create_grid 16 20 $z create_grid 16 20 20 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 6400 child grid cells parent cells = 1 CPU time = 0.0110359 secs create/ghost percent = 62.8586 37.1414 balance_grid rcb cell Balance grid migrated 6160 cells CPU time = 0.0476241 secs reassign/sort/migrate/ghost percent = 56.9567 3.17647 28.5592 11.3076 species ar.species Ar mixture air Ar frac 1.0 mixture air group species mixture air Ar vstream 2500.0 0.0 0.0 temp 300.00 fix in emit/face air all collide vss air ar.vss read_surf data.sphere 602 points 1200 triangles -1 1 xlo xhi -1 1 ylo yhi -1 1 zlo zhi 0.100631 min triangle edge length 0.00439601 min triangle area 72 = cells with surfs 2428 = total surfs in all grid cells 60 = max surfs in one grid cell 0.16101 = min surf-size/cell-size ratio 0 0 = number of pushed cells 72 0 = cells overlapping surfs, overlap cells with unmarked corner pts 6320 8 72 = cells outside/inside/overlapping surfs 72 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.042434 secs read/sort/check/surf2grid/ghost/inout/particle percent = 37.272 0.120238 12.2732 45.2492 5.08537 7.32438 0.0213506 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 61126 particles CPU time = 0.0198491 secs fix 3 balance 100 1.1 rcb part collide_modify vremax 100 yes #compute 1 grid all all nrho mass u v w #fix 1 ave/grid 10 100 1000 c_1 ave running #dump 1 grid all 1000 tmp_flow.* id xc yc zc f_1 #compute 2 surf all all press ke #fix 2 ave/surf all 10 100 1000 c_2 ave running #dump 2 surf all 1000 tmp_surf.* id f_2 compute g grid all all n compute max reduce max c_g[1] stats_style step cpu np nattempt ncoll nscoll c_max stats 100 # equilibrate flow for 1000 steps # then benchmark for 1000 steps run 1000 WARNING: One or more fix inflow faces oppose streaming velocity (../fix_emit_face.cpp:195) Memory usage per proc in Mbytes: particles (ave,min,max) = 1.6875 1.6875 1.6875 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0779371 0.0779343 0.0779381 total (ave,min,max) = 3.43267 3.43266 3.43267 Step CPU Np Natt Ncoll Nscoll c_max 0 0 61126 0 0 0 11 100 0.062057018 60935 6 6 2 35 200 0.12147284 60903 17 17 8 41 300 0.17752981 61457 22 20 8 49 400 0.23241901 62151 26 23 6 41 500 0.29131389 62783 26 24 6 43 600 0.34725285 63562 28 26 6 56 700 0.40686584 63723 23 21 10 41 800 0.46474385 63834 27 24 10 50 900 0.52212596 63799 30 29 9 52 1000 0.57956195 63778 24 21 9 38 Loop time of 0.579632 on 64 procs for 1000 steps with 63778 particles Particle moves = 62725523 (62.7M) Cells touched = 65571484 (65.6M) Particle comms = 609125 (0.609M) Boundary collides = 0 (0K) Boundary exits = 174991 (0.175M) SurfColl checks = 29248822 (29.2M) SurfColl occurs = 7383 (7.38K) Surf reactions = 0 (0K) Collide attempts = 908490 (0.908M) Collide occurs = 696795 (0.697M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.69088e+06 Particle-moves/step: 62725.5 Cell-touches/particle/step: 1.04537 Particle comm iterations/step: 1 Particle fraction communicated: 0.00971096 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00278979 Surface-checks/particle/step: 0.466299 Surface-collisions/particle/step: 0.000117703 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0144836 Collisions/particle/step: 0.0111086 Reactions/particle/step: 0 Move time (%) = 0.381866 (65.8807) Coll time (%) = 0.0277627 (4.7897) Sort time (%) = 0.0160134 (2.76269) Comm time (%) = 0.0813976 (14.043) Modfy time (%) = 0.067319 (11.6141) Outpt time (%) = 0.00229433 (0.395825) Other time (%) = 0.00297968 (0.514064) Particles: 996.531 ave 1076 max 934 min Histogram: 5 6 10 10 9 9 3 3 7 2 Cells: 100 ave 130 max 75 min Histogram: 3 1 5 9 21 19 2 0 1 3 GhostCell: 177.938 ave 312 max 82 min Histogram: 2 13 7 4 16 12 7 0 1 2 EmptyCell: 0 ave 0 max 0 min Histogram: 64 0 0 0 0 0 0 0 0 0 collide_modify vremax 100 no run 1000 WARNING: One or more fix inflow faces oppose streaming velocity (../fix_emit_face.cpp:195) Memory usage per proc in Mbytes: particles (ave,min,max) = 1.6875 1.6875 1.6875 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0779371 0.0779343 0.0779381 total (ave,min,max) = 3.43267 3.43248 3.43289 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 63778 24 21 0 38 1100 0.0577631 63721 25 23 4 45 1200 0.11959004 63902 21 19 8 41 1300 0.18244004 63642 26 24 12 44 1400 0.24095201 63423 17 15 10 40 1500 0.30109906 63440 17 17 10 35 1600 0.35803199 63581 20 19 12 37 1700 0.41588402 63755 20 20 5 42 1800 0.4754591 63908 18 17 8 43 1900 0.53671002 63813 25 24 16 47 2000 0.60007906 63740 26 25 10 51 Loop time of 0.600164 on 64 procs for 1000 steps with 63740 particles Particle moves = 63861770 (63.9M) Cells touched = 66772317 (66.8M) Particle comms = 643302 (0.643M) Boundary collides = 0 (0K) Boundary exits = 177876 (0.178M) SurfColl checks = 31945626 (31.9M) SurfColl occurs = 7553 (7.55K) Surf reactions = 0 (0K) Collide attempts = 968210 (0.968M) Collide occurs = 743057 (0.743M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.66261e+06 Particle-moves/step: 63861.8 Cell-touches/particle/step: 1.04558 Particle comm iterations/step: 1 Particle fraction communicated: 0.0100734 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00278533 Surface-checks/particle/step: 0.500231 Surface-collisions/particle/step: 0.000118271 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.015161 Collisions/particle/step: 0.0116354 Reactions/particle/step: 0 Move time (%) = 0.419129 (69.8358) Coll time (%) = 0.0264639 (4.40944) Sort time (%) = 0.0156127 (2.60141) Comm time (%) = 0.0792858 (13.2107) Modfy time (%) = 0.0555135 (9.24973) Outpt time (%) = 0.00205316 (0.3421) Other time (%) = 0.00210543 (0.350809) Particles: 995.938 ave 1005 max 984 min Histogram: 1 2 3 8 14 8 9 9 2 8 Cells: 100 ave 121 max 82 min Histogram: 4 1 5 10 21 13 6 0 1 3 GhostCell: 173.938 ave 288 max 83 min Histogram: 2 9 4 19 3 11 3 9 3 1 EmptyCell: 0 ave 0 max 0 min Histogram: 64 0 0 0 0 0 0 0 0 0